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Rocket clouds
Soil by Mind Map: Soil

1. is made of

1.1. weathered rocks

1.1.1. sand

1.1.2. silt

1.1.3. clay

1.2. organic matter

1.2.1. definition

1.2.1.1. Decomposed material that goes into soil

1.3. made of

1.3.1. nutrients

2. types

2.1. desert

2.1.1. grassland

2.1.1.1. forest

2.1.1.1.1. tropical grassland

3. layers

3.1. topsoil

3.1.1. subsoil

3.1.1.1. parent material

3.1.1.1.1. bedrock

4. 3 main things in the soil

4.1. nitrogen

4.1.1. phosphorus

4.1.1.1. potassium